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/* animskull.c
* This file contains a demo program and driver for the raytracer.
*
* $Id: animskull.c,v 1.12 2011/01/30 03:50:54 johns Exp $
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <tachyon.h>
/* int rt_mynode(void); */ /* proto */
typedef struct { /* Scalar Volume Visualization Data */
int loaded; /* Volume data memory residence flag */
int xres; /* volume X axis size */
int yres; /* volume Y axis size */
int zres; /* volume Z axis size */
apiflt opacity; /* opacity per unit length */
char name[80]; /* Volume data filename */
unsigned char * data; /* pointer to raw byte volume data */
} scalarvol;
#define MAXFRAMES 100
#define RAD 6.28
#ifdef cube
#define RFILE "animskull-cube"
#endif
#ifndef cube
#define RFILE "animskull"
#endif
int main(int argc, char **argv) {
SceneHandle scene;
int i;
int xres, yres, raydepth, antialiasing, verbosemode;
apiflt zoom, aspectratio;
apivector Ccenter, Cview, Cup;
apivector ctr1;
apitexture tex1, tex2;
apivector min3, max3;
scalarvol vol;
apiflt xc,yc;
char fname[1000];
char fname2[2000];
rt_initialize(&argc, &argv);
scene = rt_newscene();
xres=256; yres=256;
aspectratio=1.0; raydepth=18;
antialiasing=1; verbosemode=0; zoom=1.0;
Ccenter.x=0.0; Ccenter.y=0.0; Ccenter.z=-8.0;
Cview.x=0.0; Cview.y=0.0; Cview.z=1.0;
Cup.x=0.0; Cup.y=-1.0; Cup.z=0.0;
ctr1.x=20.0; ctr1.y=20.0; ctr1.z=-40.0;
tex1.col.r=1.0; tex1.col.g=1.0; tex1.col.b=1.0;
tex1.ambient=1.0;
tex1.diffuse=0.0;
tex1.specular=0.0;
tex1.opacity=8.0;
tex1.texturefunc=0;
tex2=tex1;
min3.x=-1.0; min3.y=-1.0; min3.z=-0.40;
max3.x=1.0; max3.y=1.0; max3.z=0.40;
vol.loaded=0;
for (i=0; i<MAXFRAMES; i++) {
sprintf(fname,"-%4.4d.tga",i);
strcpy(fname2,RFILE);
strcat(fname2, fname);
rt_initialize(&argc, &argv);
/* if (rt_mynode()==0) */ printf("Rendering: %s \n",fname2);
xc=cos(6.28 * i / (1.0 * MAXFRAMES));
yc=sin(6.28 * i / (1.0 * MAXFRAMES));
Ccenter.x = xc*3.0;
Ccenter.z = yc*3.0;
Cview.x = -xc;
Cview.z = -yc;
rt_outputfile(scene, fname2);
rt_resolution(scene, xres, yres);
rt_verbose(scene, verbosemode);
rt_camera_setup(scene, zoom, aspectratio, antialiasing,
raydepth, Ccenter, Cview, Cup);
rt_light(scene, rt_texture(scene, &tex1), ctr1, 1.0);
rt_scalarvol(scene, rt_texture(scene, &tex2), min3, max3, 256, 256, 100,
"vol/head.256x256x109", &vol);
rt_renderscene(scene);
}
rt_finalize();
return 0;
}
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